American Crane is a proud member of the Crane Manufacturing Association of America (CMAA). I am honored to serve as President of the CMAA for the next two years. The CMAA’s mission is the deliver technical specifications and resources that promote safety in the design, operation and maintenance of overhead cranes. This group is an affiliation of the Material Handling Industry (MHI), and is an independent trade organization that advocates for optimal crane safety, Overhead Crane Best Practices and serves as a resource for all types of professionals within the industry.
CMAA Members are include top US industrial cranes manufacturers, leading suppliers of overhead crane systems, designing, manufacturing, assembling, installing and servicing overhead cranes and components. The CMAA organization brings crane industry leaders together and facilitates various industry events and educational opportunities.
CMAA’s engineering committee includes over 50 experts including structural, electrical and mechanical. The volunteers, including several of our American Crane engineers, work together to design, review and update specifications that are recognized as the preferred design standards for overhead traveling cranes and integrated crane systems, as well as crane components. We use these specifications to engineer and build our cranes.
The Crane Manufacturers Association of America (CMAA) has released in late 2020 the latest updates to two of its technical specifications. This release is the first substantial changes to the specifications since 2015.
CMAA Specification 70 – Specifications for Top Running Bridge & Gantry Type Multiple Girder Electric Overhead Traveling Cranes
CMAA Specification 74 – Specifications for Top Running & Under Running Single Girder Electric Traveling Cranes Utilizing Under Running Trolley Hoist
These releases contain updates to the following areas:
- Runway rail straightness and elevation table
- Wind Restraints
- FEA design
- Service wind load
- Box girder design updates
- End truck deflection
- Hoist wire rope angle of loading
- Wire rope and D/d ratio
- Hoist drum design
- Keys and keyways
- Continuous and intermittent duty motors
- Wiring practices
- Cab, pendant, and radio layouts
- Regenerative power considerations
- Application of IEEE 519 for cranes
- Magnet controls
- Rail clamps
CMAA has also created a comprehensive Buyer’s Guide to assist procurement professionals in the selection of material handling equipment. This is a great tool to use when purchasing overhead cranes.
As a top overhead crane manufacturer and supplier in the USA, we are proud to be an executive member of the CMAA and I look forward to serving our industry as President of this organization. For more information, please contact us.
